CAPTIVE BALLOON STABLE TO WIND LOAD Russian patent published in 2006 - IPC B64B1/50 B64B1/42 

FIELD: aerostation.

SUBSTANCE: proposed captive balloon has envelope made from gas-tight material and captive cables. Captive balloon is additionally provided with aerodynamic stabilization unit made in form of feathering unit secured on rod passing through upper pole of balloon envelope by means of lines; feathering unit is provided with keel; feathering unit is made in form of three-dimensional streamlined body inflated by air flow; when it is filled with air, it has shape of aerodynamic wing in plane of longitudinal section. Three-dimensional body is formed by upper and lower gores stretched on framework; edges of these gores are fastened over their perimeter forming air intake slotted opening and inner cavity filled with air flow. In zone of intake hole, upper gore has sizes exceeding sizes of lower gore, so that when three-dimensional body is filled with air, upper gore overhangs above lower gore.

EFFECT: simplified construction of balloon stable to wind load.

3 cl, 4 dwg